In-tank toilet bowl cleaning device



FIG. 1 is a front view of a in-tank toilet bowl cleaning deviceembodying my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a rear view thereof.

The cross-lining of elements in FIG. 1 is to indicate a contrast inmaterials.

The ornamental design for an in-tank toilet bowl cleaning device, asshown and described.